document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23167>Question 23167</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When I am as old as my father is now, I shall be five times as old as my son is now. By then my son will be eight years older than I am now. The combinded ages of my father and myself are 100 years. How old is my son?\r<BR>\n" );
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document.write( "Father=x  Myself=y  Son=s\r<BR>\n" );
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document.write( "      x=5s  x+y=100  5s=y+8  y/5=s<BR>\n" );
document.write( "         5(y/5)+y=100<BR>\n" );
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document.write( "I just don't know how to solve this. Please help. Thank you <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #11725 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=11725\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your equations:<BR>\n" );
document.write( " x=5s  x+y=100  5s=y+8  y/5=s<BR>\n" );
document.write( "         5(y/5)+y=100\r<BR>\n" );
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document.write( "I think your equations should be:<BR>\n" );
document.write( " x=5s  x+y=100  s+(x-y)=y+8  x/5=s<BR>\n" );
document.write( "       y=100-x  s+ x - 2y=8<BR>\n" );
document.write( "       y=100 - 5s\r<BR>\n" );
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document.write( "s+x-2y = 8<BR>\n" );
document.write( "s+ 5s -2(100-5s) = 8<BR>\n" );
document.write( "6s -200 +10s = 8<BR>\n" );
document.write( "16s -200=8<BR>\n" );
document.write( "16s = 208<BR>\n" );
document.write( "s= 13 son's age now<BR>\n" );
document.write( "x= 5(13) = 65 father's age now<BR>\n" );
document.write( "y=100-x = 100-65 = 35 my age now\r<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "\"When I am 65, I shall be five times as old as my son is now.\"  ---- True!!\r<BR>\n" );
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document.write( "\"By then (I went from 35 to 65, so 30 years has gone by!), my son will be 8 years older than I am now.\"  Son will be 13 + 30 = 43, which is 8 years older than I am now! ----  True!!\r<BR>\n" );
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document.write( "\"The combined ages of my father and myself are 100 years.\"  ----  True!!\r<BR>\n" );
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document.write( "R^2 at SCC<BR>\n" );
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